A measure against a movement of a reference station from a reference point is taken to prevent inconveniences, such as a significant deviation of an operation vehicle from a target travel route. An autonomous travel system is provided with: a reference station (60) which is installed at a predetermined reference point and which transmits correction information based on positional information of the reference point and satellite positioning information a mobile station which is mounted on an operation vehicle (1) and which calculates positional information of the operation vehicle (1) on the basis of the correction information transmitted from the reference station (60) and the satellite positioning information and an autonomous travel control unit for causing the operation vehicle to autonomously travel along a target travel route predetermined by using the positional information of the operation vehicle (1) calculated by the mobile station. The autonomous travel system includes a movement detection unit for detecting a movement of the reference station (60), and the autonomous travel control unit stops autonomous travel of the operation vehicle (1) when the movement detection unit detects the movement of the reference station (60).Une mesure est prise à partir dun déplacement dune station de référence par rapport à un point de référence pour éviter les inconvénients, tels quun écart significatif dun véhicule de travail par rapport à un itinéraire de déplacement cible. Linvention concerne un système de déplacement autonome comportant : une station de référence (60) qui est installée à un point de référence prédéterminé et qui transmet des informations de correction sur la base dinformations de position du point de référence et dinformations de positionnement par satellite une station mobile qui est montée sur un véhicule de travail (1) et qui calcule des informations de position du véhicule de travail (1) sur la base des informations de correction transmises par la
